unit 6

Question 1

dendrites

Answer 1

Helps to transmit signals, brings them into the rest of the neuron

Question 2

cell body

Answer 2

Holds organelles and the nucleus, contains dna

Question 3

nucleus

Answer 3

Guides the axon hillock

Question 4

nissl bodies

Answer 4

Synthesises and sorts proteins

Question 5

axon hillock

Answer 5

Controls initiation of electrical impulses

Question 6

axon

Answer 6

Carries the electrical impulses

Question 7

Schwann cell

Answer 7

Maintains the peripheral nervous system

Question 8

mylein sheath

Answer 8

Quickens the electrical impulses

Question 9

node of ranvier

Answer 9

Helps ions diffuse in and out of neuron

Question 10

axon terminals

Answer 10

Helps neurons conduct electrical impulses down another neuron

Question 11

synapse

Answer 11

Passes electrical/chemical signals other neurons

Question 12

RAS

Answer 12

Controls the waking and sleeping/fight or flight response

Question 13

frontal lobe

Answer 13

Supports head structures/protects the brain

Question 14

parietal lobe

Answer 14

receives/processes sensory inputs (touch, pressure, heat, cold, pain, etc)

Question 15

temporal lobe

Answer 15

Processes sounds and encodes memory

Question 16

occipital lobe

Answer 16

Processes distance, depth perception, color determination, facial recognition, and memory formation

Question 17

brain stem

Answer 17

Breathing, consciousness, blood pressure, heart rate, and sleep

Question 18

cerrebellum

Answer 18

Muscle control, balance/movement

Question 19

motor area

Answer 19

Directs movement in the body

Question 20

sensory area

Answer 20

Processes visual info/object recognition

Question 21

broca’s area

Answer 21

Processes speech

Question 22

Wenicke’s Area

Answer 22

Helps for us to speak

Question 23

hippocampus

Answer 23

memory/learning/emotions

Question 24

amygdala

Answer 24

Processes memories and emotions related to fear, strong and imediate emotions

Question 25

action potential steps

Answer 25

1 - Resting state
2- A stimulus opens up some of the sodium channels.
3 - More sodium channels open up
4 - Sodium channels close, potassium channels open
5 - Potassium channels close slowly
6 - Return to resting state

Question 26

Neurotransmitter

Answer 26

The electrical signal in the axon is converted into a chemical signal by special chemicals called neurotransmitters.

The neurotransmitter carries the message across the synaptic cleft from one neuron to the next.

Question 27

reflex

Answer 27

quick and automatic reaction, not conscious thought

Question 28

sodium potassium pump

Question 29

neuroplasticity

Answer 29

the ability to learn and develop new skills

Question 30

drugs on brain

Answer 30

shaped like neurotransmitters that open receptors to release brain chemicals

Question 31

somatic

Answer 31

relates to central nervous system

Question 32

autonomic

Answer 32

relates to peripheral nervous system

Question 33

symptomatic nervous system

Answer 33

responds to dangerous/stressful situations

Question 34

reflex arc

Answer 34

reflex pathway thing

Question 35

sensory neuron

Answer 35

activated by outside environment

Question 36

motor neurons

Answer 36

directly controls movement

Question 37

integration

Answer 37

how brain regions work together

Question 38

effector cell

Answer 38

defend body in immune response

Question 39

cerebrum

Answer 39

manages all conscious thoughts

Question 40

cerebellum

Answer 40

movement regulation and balance control